An early 20th century 18ct gold opal and diamond rin

An early 20th century 18ct gold opal and diamond three-stone ring. The graduated oval opal cabochon line, with old-cut diamond double spacers. Estimated total diamond weight 0.10ct. Ring size L1/2. We

An early 20th century 18ct gold opal and diamond ring. The graduated oval opal cabochon line, with old-cut diamond line spacers and tapered shoulders. Hallmarks for Birmingham. Ring size Q1/2. Weight

An early 20th century 18ct gold opal and diamond ring. The oval opal cabochon, to the single-cut diamond and circular opal cabochon sides. Weight 3.2gms.

Three gold gem-set rings. To include an early 20th century 18ct gold opal and diamond dress ring, a 9ct gold garnet band ring, together with one further ring. One AF. Hallmarks for gold, one partially

An early 20th century 18ct gold diamond and opal dress ring. The oval-shape opal cabochon line, with old-cut diamond spacers. Hallmarks for Birmingham, 1916. Ring size N1/2. Weight 3.5gms. Overall con

An early 20th century 18ct gold opal five-stone ring. The graduated oval opal cabochon line, with diamond point double spacers. AF. Hallmarks for Birmingham, partially indistinct. Ring size O. Weight

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.

An early 20th century 18ct gold diamond three-stone ring. The circular-cut diamond, with similarly-cut diamond sides, to the scrolling gallery and shoulders. Estimated total diamond weight 1.15cts, H-

An early 20th century 18ct gold diamond ring. The old-cut diamond crossover terminals, to similarly-cut diamond scrolling foliate asymmetric sides and grooved band. Principal diamonds estimated total

An early 20th century 18ct gold diamond dress ring. The old-cut diamond quatrefoil, with rose-cut diamond centre and sides. Estimated total old-cut diamond weight 0.70ct, I-J colour, SI clarity. Ring

An early 20th century 18ct gold diamond floral cluster ring. The old-cut diamond floral cluster, to the plain band. Estimated total diamond weight 0.45ct. Ring size I. Weight 2.4gms.

An early 20th century 18ct gold diamond ring. The old-cut diamond, with openwork gallery and shoulders. Estimated diamond weight 0.65ct, H-I colour, VS2-SI1 clarity. Ring size M. Weight 5.3gms.

An early 20th century 18ct gold diamond snake ring.Estimated total diamond weight 0.30ct, H-I colour, SI2-P2 clarity.Hallmarks for Birmingham, 1915.Ring size V. 8.7gms.

An early 20th century 18ct gold diamond set signet ring, rectangular head with a star set old cut diamond, estimated approximate weight 0.04ct, head dimensions 9.6 x 8.5mm, tapering engraved shoulders

Two early 20th century 18ct gold diamond and sapphire dress rings. To include a graduated oval-shape sapphire three-stone ring with diamond point double spacers, together with an alternating circular-

An early 20th century 18ct gold diamond cluster ring. The old-cut diamond collet, within a similarly-cut diamond and curved bar halo, to the old-cut diamond sides. Estimated total diamond weight 0.50c

An early 20th century 18ct gold diamond single-stone ring. The old-cut diamond, with scalloped mount and tapered shoulders. Estimated diamond weight 0.50ct, L-tinted colour, P1 clarity. Hallmarks for

An early 20th century 18ct gold diamond ring and a 9ct gold emerald and diamond ring. The first designed as three old-cut diamonds inset to a tapered band, the second designed as a marquise-shape emer

An early 20th century 18ct gold diamond and split pearl crescent brooch. Designed as a graduated split pearl crescent, with old-cut diamond and split pearl stylised wreath detail. Estimated total diam

An early 20th century 18ct gold diamond and ruby five-stone ring. The graduated circular-shape ruby and single-cut diamond line, with textured shoulders. Hallmarks for Chester, 1919. Ring size Q. Weig

Three early 20th century 18ct gold diamond and gem-set rings. To include an Edwardian diamond three-stone ring, an Edwardian ruby and diamond dress ring, together with one further ring. Hallmarks for

An early 20th century 18ct gold diamond five-stone ring. The graduated circular-cut diamond line, with openwork gallery. Estimated total diamond weight 0.25ct. Hallmarks for Birmingham, 1919. Ring siz

An early 20th century 18ct gold diamond five-stone ring. The graduated old-cut diamond line, to the tapered band. Estimated total diamond weight 0.45ct, I-J colour, SI2-P3 clarity. Hallmarks for Londo

An early 20th century 18ct gold diamond five-stone ring. The graduated old-cut diamonds, to the scrolling shoulders and replacement band. Estimated total diamond weight 0.35ct, I-J colour, SI clarity.